How to update an extjs window on its button click - extjs

Question

Currently i am facing the following problem.
I am displaying after successful call of this ajax request.
function callDesignWindow(){
var serviceType = $("#serviceType").val();
alert(serviceType);
var ptId = $("#pt_id").val();
alert(ptId);
getAjaxPage({
url : "/ajax/NewEform/design.do?serviceType=" + serviceType +"&ptId =" + ptId,
successCallback: function (data) {
showDesignWindow(data);
}
});
searchVisible = true;
}
function showDesignWindow(htmlData){
alert(" In the show Design Window");
var designWindow = new Ext.Window({
title: "E-Form Design Phase",
width:650,
autoHeight: true,
id:'designWindow',
html: htmlData,
closable: false,
y: 150,
listeners: {
beforeclose: function () {
searchVisible = false;
}
},
buttons: [
{
text: 'Add Control', handler: function() {
saveFormControl();
}
},
{
text:'Customize', handler: function() {
designWindow.hide();
callCustomWindow();
}
}
]
});
designWindow.show(this);
}
function saveFormControl(){
alert(" add control button clicked");
if (!validateEformData()) return false;
formname= $("#formname").val();
alert(formname);
controlType= $("#controlType").val();
alert(controlType);
label= $("#labelname").val();
alert(label);
dataType= $("#dataType").val();
required= $("#required").val();
serviceType= $("#serviceType").val();
ptId = $("#ptId").val();
if(controlType == 3){
var itemList = [];
$("#selectedItemLists option").each(function(){
itemList.push($(this).val());
});
}
data = "eform_name=" + formname + "&control=" + controlType + "&serviceType=" + serviceType +"&ptId=" + ptId +"&labelName=" +label+ "&dataType=" +dataType+"&required="+required+"&items="+itemList;
alert(data);
$.ajax( {
type : "POST",
url : "/ajax/eformDetails/save.do",
data : data,
cache : false,
dataType : "text/html",
timeout: 40000,
error: function (xhr, err)
{
resolveAjaxError(xhr, err);
},
success : function(data) {
// Ext.getCmp('designWindow').close();
// showDesignWindow(data);
}
});
}
Now on success call of the ajax call ("/ajax/eformDetails/save.do") i want to update the designWindow and reset the values.
please help me in this.

Answer 1

If you want to be able to to manipulate our designWindow after you have already created it, you will need to either maintain a reference to it somewhere, or take advantage of the Ext.getCmp method (I would recommend the latter. For example, in your success function:
success: function () {
var myWindow = Ext.getCmp('designWindow');
//do whatever changes you would like to your window
}